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Finding the Fourth Proportional to 292,208.60, 438,312.90 and 187,232.60

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Solution

The fourth proportional to 292,208.60, 438,312.90 and 187,232.60 is: 280,848.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,208.60 : 438,312.90 = 187,232.60 : x
  2. Step 2: Convert to fraction form
    292,208.60/438,312.90 = 187,232.60/x
  3. Step 3: Cross multiply
    292,208.60x = 438,312.90 × 187,232.60
  4. Step 4: Simplify right side
    292,208.60x = 82,066,463,880.54
  5. Step 5: Solve for x
    x = 82,066,463,880.54/292,208.60
  6. Step 6: Final answer
    x = 280,848.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.